Comparative Evaluation of Tensile Strength and Knot Strength of Nigella sativa Coated and Non-Coated Sutures: An In vitro Study

Background: Surgical sutures, essential for wound closure, must possess optimal mechanical properties to ensure patient safety and healing efficacy. The antimicrobial and anti-inflammatory properties of Nigella sativa have prompted its use as a suture coating to enhance wound healing. The aim of the study is to coat the sutures with N. sativa extract, and their mechanical properties like tensile strength and knot strength were evaluated and compared to non-coated sutures. Materials and Methods: N. sativa extract was prepared by distillation method and knot strength and tensile strength were evaluated by standardized testing methods using Instron tester. Results: The results show that there are some statistically significant differences between N. sativa -coated suture and non-coated suture in tensile strength and no significant differences were found while measuring knot strength between the groups. Conclusion: N. sativa -coated sutures have good tensile strength and equal knot strength compared to non-coated sutures.